spring design 101
DESCRIPTION
design of springsTRANSCRIPT
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Spring Design 101Spring Design 101
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What information is needed to properly What information is needed to properly design/order a spring?design/order a spring?
1) What parameters do I Have?1) What parameters do I Have? What does my spring fit into?What does my spring fit into? What does my spring fit over?What does my spring fit over? What is the atmosphere? (Moisture, Saltwater, Heat etc.)What is the atmosphere? (Moisture, Saltwater, Heat etc.) How is the spring being used/installed?How is the spring being used/installed? Has there ever been a problem before? Has there ever been a problem before?
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What information is needed to properly What information is needed to properly design/order a spring?design/order a spring?
2) What are the spring’s physical requirements?2) What are the spring’s physical requirements?
What are the relaxed/installed lengths?What are the relaxed/installed lengths? How much travel is involved?How much travel is involved? What length are you traveling to? (Length/Deflection)What length are you traveling to? (Length/Deflection) What is the max solid/travel height?What is the max solid/travel height? What force is needed at a specified length?What force is needed at a specified length? What type of material is needed?What type of material is needed? What are the end types needed?What are the end types needed? Tight Tolerances Needed?Tight Tolerances Needed? Type of winding?Type of winding?
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Compression SpringsCompression Springs
1) Type of ends?1) Type of ends?
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Compression SpringsCompression Springs
2)What are my Physical Characteristics?2)What are my Physical Characteristics?
Size/Type of Material?Size/Type of Material? Outside Diameter?Outside Diameter? Inside Diameter?Inside Diameter? Free Length? Free Length? Total Coils?Total Coils? Solid Height?Solid Height? Rate per Inch?Rate per Inch? Load @ Length?Load @ Length?
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Compression SpringsCompression Springs
Size of MaterialSpace Between Coils
Me
an
Dia
me
ter
Ground Section
Pitch
Ins
ide
Dia
.
Ou
tside D
ia. Free Length
12 ½ C
oils
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Extension SpringsExtension Springs
2)What are my Physical Characteristics?2)What are my Physical Characteristics?
Size/Type of Material?Size/Type of Material? Outside Diameter?Outside Diameter? Inside Diameter?Inside Diameter? Free Length Body/Inside Hooks? Free Length Body/Inside Hooks? Total Coils?Total Coils? Initial Tension?Initial Tension? Rate per Inch?Rate per Inch? Load @ Length?Load @ Length? Max Deflection?Max Deflection? Gap Lengths of hooks?Gap Lengths of hooks? Straight Pull?Straight Pull?
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Extension SpringsExtension Springs
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Extension SpringsExtension Springs
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Extension SpringsExtension Springs
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Extension SpringsExtension Springs
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Torsion SpringsTorsion Springs
2)What are my Physical Characteristics?2)What are my Physical Characteristics?
Size/Type of Material?Size/Type of Material? Outside Diameter?Outside Diameter? Inside Diameter?Inside Diameter? Body Length? Body Length? Total Coils?Total Coils? Angle at free position?Angle at free position? Degrees of deflection?Degrees of deflection? Rate Inch/lbs. Per Degree?Rate Inch/lbs. Per Degree? Max degrees of Deflection?Max degrees of Deflection? Closewound or Pitched?Closewound or Pitched?
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Torsion SpringsTorsion Springs
1)Type of Ends?1)Type of Ends?
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ConclusionConclusion
1) Always offer as much information as 1) Always offer as much information as possible!possible!
2) Remember, price is not always 2) Remember, price is not always everything!everything!
3) Remember, lead times!3) Remember, lead times!
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Spring Specification SheetSpring Specification Sheet